Window wedge



May 14, 1940. H. o. CARROLL WINDOW WEDGE Filed Feb. 2, 1939 INVENTOR. HUBERT O. CARROLL Patented May 14, 1940 UNITED "STATES PATENT OFFlfiE 2,200,539 WINDOW WEDGE Hubert 0. Carroll, Painesville, Ohio- .Application February 2, 1939, Serial No. 254,258 cl ims. (01. 292-442) In windows of the sliding type, it is customary to fit the sashes in the stops initially as tightly as possible while stillv permitting movement. When the windows are painted the sashes stick tightly and it is quite commonthat the stress which is incurred in efforts at opening and closing the window, causes distortion-damage to the sash resulting in springingof the sash, and often starting strain-cracks in'the glass. After the paint is worn down, the more or less exposed wood easily absorbs moisture, and on recurring rainy spells the sticking difiiculty recurs and further strain-damage results. If the sashes are fitted loosely in the stops on the other hand, the window rattles in windy weather, and even with the most efficient sash-closures it is impossible to lock the sashes sufiiciently against the stops to keep out drafts. In accordance with the present invention however, a Window construction may now be had in which a sash may be fitted loosely, such as to facilitate easy movement and completely avert distortion-damage to the sash from strains resultant from sticking, and at the same time the sash may be held tightly against its stop to prevent rattling and drafts.

To the accomplishment of the foregoing and related ends, the invention, then, comprises the features hereinafter fully described, and particularly pointed out in the claims, the following description and the annexed drawing setting forth in detail certain illustrative embodiments of the invention, thesebeing indicative however,

of but a few of the various ways in which the principle of the invention may be employed.

In said annexed drawing:

Fig. 1 is an inside perspective view of a window in accordance with the invention; Fig. 2 is a view from the outside; Fig. 3 is an enlarged sectional view taken on a plane substantially indicated by the line III-III, Fig. 1; Fig. 4 is a similar section taken on a plane substantially indicated by the line IV-IV, Fig. l, and of course a corresponding view in Fig. 2; Fig. 5 is an enlarged fragmentary detail elevational view of the operating mechanism as would appear looking toward the left hand on Fig. 1; Fig. 6 is a vertical sectional detail through the cam plate and shoe within, in one position, viz. with the parts as shown'by Fig. 5 in. full line; Fig. '7 is a similar view with the parts in position as indicated in dotted line in Fig. 5; and Fig. 8 is a transverse sectional detail on a plane substantially indicated by line VIII, Fig. 2.

In a Window having a frame 2, and sashes 3, 4, slidable therein, a central stop 5, Fig. 3, and outside and inside stops 6,1, Figs. 4 and 3, are pro vided respectively, and therewith means for forcing each sash into tight relation, this involving in general a cam plate having a cam surface which is on an inclinewith relation to the, axis of the stop while a shoe carried by the cam plate and having a portion riding the cam surface, is provided with means resiliently urging the shoe to a remote portion of the cam surface, and

means operated by the sash tends to push the shoe to the other portion of p the cam surface.

The mechanism is of particular usefulness with lower sashes inasmuch as these are generally the worst offenders where undue tightness or undue looseness occurs, and as shown in Fig. 1, it is desirable to have acam plate 9 at each side, as on the inner stop I. A complete complement will however desirably involve a corresponding pair for the upper sash, as shown more fully in Fig. 2. The stops need not be close againstthe sashes. In fact, it is advantageous to have them with ample space and irrespective of paint and dirt accumulationthe sashes will operate'easily and freely.- As shown in Fig. 3, the cam plate 9 is of angular form and is set on a slight cut-out in the inside stop I and may be suitably fastened, as by screws I0. Carried-by the cam plate 9 is a shoe I I. The cam plate 9 has an inclined slot I2, shown particularly clearly in Figs. 6 and 7, and the cam shoe II is provided with stirrups I3 so as to slidably straddle the inner wing of the cam plate, as is seen more clearly in Fig. 3, and a pin HI extends through the cam slot I2 and rides on its surfaces, being secured in the stirrups it of the shoe, as by rivet-heading. Desirably, the pin I4 projects through externally sufiiciently to be provided with a head I5 for actuation, as will appear more clearly hereinafter. As thus seen, looking at Fig. 3, the cam plate 9 stationary on the frame or stop, allows the cam shoe II to travel back and forth on the plate as a base, such travel being in general in direction of alinement with the sash, but by' reason of the cam slot I2 the shoe is in a position back from the sash at one end of its excursion and at the other end of its excursion is thrusting against the sash and pushes the sash against the stop 5. Normally, the shoe is urged intoits back position, as indicated in Fig. 6, by suitable resilient means, such as a spring I6. Such spring, within the cam plate and cam shoe is wholly out of the Way and. protected. The camming shoe is operated auto matically by the sash, and for this the sash may be provided with an actuator. Desirably this may be a member N, Fig. 5, as a projection from .66 

